Steady-State Operation; Ignition Failure; Burner Flame Goes Out During Operation; Stopping Of The Burner - Riello RS 34/E MZ Installation, Use And Maintenance Instructions

Parameter
No. Description
960 Actual output
961 Status of external modules and visualisation
981 Memory error: Code
982 Memory error: diagnostic code
992 Error indicators
6.10

Steady-state operation

Burner without modulating operation kit
Once the start-up cycle is completed, the servomotor command
moves on to the thermostat/pressure switch TR that controls the
pressure or the temperature in the boiler.
 If the temperature or the pressure is low (so the thermostat/
pressure switch TR is closed), the burner progressively
increases the output as far as the MAX value (point "P9").
 If the temperature or the pressure increases as far as the
opening of the thermostat/pressure switch TR, the burner
progressively reduces the output as far as the MIN value
(point "P1"). And so on.
6.11

Ignition failure

If the burner does not switch on, there is a lockout within 3s of the
electrical supply reaching the gas valve.
It may be that the gas does not arrive at the combustion head
within the safety time of 3 s.
In this case, increase gas delivery upon ignition.
The arrival of the gas at the pipe coupling is shown on the pres-
sure gauge of Fig. 39 at page 51.
6.12

Burner flame goes out during operation

If the flame accidentally goes out during operation, the control
box carries out a recycle (i.e. it repeats the start-up phase once,
and makes a further ignition attempt).
6.13

Stopping of the burner

The burner can be stopped by:
 intervening on the disconnecting switch of the electrical sup-
ply line, located on the boiler panel;
 removing the cover and working on the switch " 0-1 " of
Fig. 32 at page 32;
 removing the transparent protection that covers the Operator
Panel, after loosening the relative screw, and using the
panel itself according to "Manual lockout procedure" at
page 35.
20068131
Start-up, calibration and operation of the burner
No. ele-
ments
1
ft
1
1
1
10
Value range
Unit of Modifica-
measure tion
Min.
3
m /h, l, h,
Reading only 0
3
/h, gal/h
- Reading only 0
- Reading only 0
- Reading only 0
- Reset 0
 The burner switches off when the request for heat is lower
than the heat supplied by the burner at MIN output.
 The thermostat/pressure switch TL opens and the control
box carries out the switching off phase.
 The damper closes completely to reduce thermal disper-
sions to a minimum.
Burner with modulating operation kit
See the manual supplied with the regulator.
In the event of a burner lockout, more than two
consecutive burner reset operations could cause
damage to the installation. On the third lockout,
contact the Aftersales Service.
WARNING
If further lockouts or burner faults occur, interven-
tions must only be made by qualified, authorised
personnel (as indicated in this manual, and in
compliance with the laws and regulations current-
DANGER
ly in force).
If the flame is still absent, the control box goes into lockout.
48 GB
Degree of Default
accuracy setting
Max.
6553.5 0.1 0
255 1 0
255 1 0
255 1 0
0xFFFFFF
1 0
FF
Acces mode
Info mode
Info mode
Info mode
Info mode
Service mode
Tab. P